Daniel lombard



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DANIEL LOMBARD, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND GEO.E.

RICHARDSON, OF SAME PLAGE.

BRICK-MACHINE.

To all whom it may concern:

Be it known that I, DANIEL LOMBARD, of Boston, in the county of Suffolkand State of hlassachusetts, have invented an Improved Machine forMaking Bricks; and I do hereby declare that the same is fully describedand represented in the following specification and the accompanyingdrawings, of which- Figure l, is a t-op view of such machine; Fig. 2, afront side elevation of it; Fig. 3, a vertical, central and longitudinalsection of it; Fig. 4, a rear side elevation of it; Fig. 5, a section ofthe molding wheel taken in line of its axis; Fig. 6, is a side view ofthe scraper and its spring as arranged in the hopper.

In these drawings, A, denotes the framework of the machine, such beingmade to support a hopper B, and a molding wheel C, which revolves underand in the hopper. This wheel has a series of molds or matrices a, a, aformed in its periphery, each being furnished with a piston b. All thesepistons of each line of molds are connected by one bar, c, which extendsinto and through two radial slots, d, (l, made in the heads e, c, of themolding wheel. Curved cams projecting respectively from the two sides ofthe frame as shown at f, in Figs. 2, and 3, serve to depress suchpistons while their bars are passing around beneath such cams-the samebeing for the purpose of expelling the bricks from the molds.

Above the molding wheel and in the hopper are placed two or any othersuitable number of mixers, D, D, each of which is composed of a drum orshaft, g, and a series of arms, 7L, h, projecting from it. The arms ofone mixer play between those of the other while the mixers are beingrevolved.

In advance of the mixers and in the hopper is an inclined gage, E, whoseunder edge is arranged at a short distance above the molding wheel. Boththe rear and front sides of the gage are to be inclined as shown in thedrawings. The inclination of the rear side of it with respect to themolding wheel causes the clay to be forced into the molds while thewheel is revolved toward the gage, and besides this, the space betweenthe lower edge of the gage and the molding wheel determines thethickness of clay which should be left on the wheel for the correctaction of the next part of the machine, viz, the condensing roller F.This condensing roller rolls against the external periphery or perimeterof the molding wheel and serves to condense the clay evenly in thelmolds. It also answers another purpose in connection with the springscraper andthe inclined upper surface of the gage. This spring scraperis shown at G, in advance of the condensing roller. It is a thin plateof metal placed in the hopper as seen in the drawings and borne down onthe outer surface of the molding wheel by a spring K. This scraperserves to remove the surplus clay from olf the mouths of the molds andreduces the outer surfaces of the bricks therein to plane surfaces. Thecondensing roller leaves the clay with a curved surface and the scraperreduces the curve on the chord of the arc-such chord being equal inlength to the width of a brick mold. The molding wheel should be formedwith a polygonal perimeter in such manner as to enable the scraper toreduce the under surface of the clay in each mold to a plane surfaceparallel to the face of the piston of such mold.

The surplus clay removed by the scraper will be raised by the condensingroller and discharged upon and forced up the inclined plane of the uppersurface of the gage and toward and to the mixers by whose action it willbe again reduced or mingled with the clay which is in rear of the gage.The directions of the motions of the mixers and condensing roller areindicated by arrows as shown in Fig. 3.

The condenser may be formed as a hollow tube or drum, or with acylindrical chamber M, within it one of its ournals being made tubularand so connected with a steam or hot air pipe N, as that steam or hotair may be caused to pass into the chamber in the condensing roller andheat such roller in order to prevent the clay from adhering to itssurface and to cause the roller to work the clay smoother than it wouldin a solid state.

In Figs. 1, and 2, is shown the system of gearing, by which the mixersand condensing roller may be put in revolution when the molding wheel isrotated, such gears being shown at 0, p, and g, o", s, t, the gear o,being on the shaft of the molding wheel,

while the gears p, s, t, are Xed respectively on the shafts of thecondensing roller and the mixers.

In the operation of the machine, the hopper is to be charged with wetclay. The mixers break it up and reduce it to a proper consistency. Themolding wheel forces it forward under the gage which by its resistanceand inclined under surface causes the clay to pass into the molds', anddepress the pistons in case their own weight should not cause them todescend in the matrices. In passing under the condensing roller, theclay is rolled into and forced into the molds. The scraper next operatesto reduce to a plane surface the rolled surface projecting from eachmold. Finally the bricks after they are carried out of the hopper aredischarged from the molds and may be received upon a board, endlessapron or any other convenient means.

Having thus described my improved brick machine, I would remark that Ido not claim a molding wheel connected with a hopper, as I am aware thatsuch is not new, but

What I do claim is as follows:

l. I claim combining with the brick making machinery, a means of heatingthe condensing roller, F, as described.

2; I also claim the combination of the gage E, constructed as described,the scraper G and the condensing roller, F, with the hopper B, themoulding wheel C, and mixers, D, D, the whole being arranged as and forthe purpose specied.

In testimony whereof, I have hereunto set my signature.

DANIEL LOMBARD. Witnesses R. I-I. EDDY, CALEB EDDY.

